How does this obfuscated javascript code work?
Is not a puzzle and it isn't related in any way to the site. So how come it is migrated from stackoverflow to here?
@JanDvorak twas migrated because it was a puzzle. Two users who commented on it (and others that were deleted) even referred to it as not a programming problem, but think of it in terms of a puzzle. Reading the "Programming Puzzles" help center, it wasn't entirely clear what you mean by 'puzzle'.